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CVE-2026-41179

9.8 · CRITICAL

Rclone is a command-line program to sync files and directories to and from different cloud storage providers.

Published Apr 23, 2026CWE-78EPSS 5.30%

Overview

CVE-2026-41179 is a critical-severity vulnerability. It was published on April 23, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Rclone is a command-line program to sync files and directories to and from different cloud storage providers. Starting in version 1.48.0 and prior to version 1.73.5, the RC endpoint `operations/fsinfo` is exposed without `AuthRequired: true` and accepts attacker-controlled `fs` input. Because `rc.GetFs(...)` supports inline backend definitions, an unauthenticated attacker can instantiate an attacker-controlled backend on demand. For the WebDAV backend, `bearer_token_command` is executed during backend initialization, making single-request unauthenticated local command execution possible on reachable RC deployments without global HTTP authentication. Version 1.73.5 patches the issue.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/backend/webdav/webdav.goGitHubgithub.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/operations/rc.goGitHubgithub.com/rclone/rclone/blob/bf55d5e6d37fd86164a87782191f9e1ffcaafa82/fs/rc/cache.goGitHubgithub.com/rclone/rclone/commit/2a9e952b38e03a96bf40c9eb6e8e22199865ee3bGitHubgithub.com/rclone/rclone/releases/tag/v1.73.5GitHubgithub.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6qRefrclone.org/changelog/#v1-73-5-2026-04-19Refaccess.redhat.com/security/cve/CVE-2026-41179Refbugzilla.redhat.com/show_bug.cgi?id=2460988GitHubgithub.com/rclone/rclone/security/advisories/GHSA-jfwf-28xr-xw6q

How CyberStrike helps

Frequently asked questions

What is CVE-2026-41179?

CVE-2026-41179 is a critical-severity vulnerability. It was published on April 23, 2026 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2026-41179?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-41179?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-41179?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-41179 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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